Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / whidbey / QFE / ndp / fx / src / xsp / System / Web / Util / SafeBitVector32.cs / 1 / SafeBitVector32.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Threading; namespace System.Web.Util { // // This is a multithreadsafe version of System.Collections.Specialized.BitVector32. // [Serializable] internal struct SafeBitVector32 { private volatile int _data; internal SafeBitVector32(int data) { this._data = data; } #if UNUSED_CODE internal int IntegerValue { get { return _data; } set { #pragma warning disable 0420 Interlocked.Exchange(ref _data, value); #pragma warning restore 0420 } } #endif internal bool this[int bit] { get { int data = _data; return (data & bit) == bit; } set { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { break; } } } } internal bool ChangeValue(int bit, bool value) { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } if (oldData == newData) { return false; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { return true; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Threading; namespace System.Web.Util { // // This is a multithreadsafe version of System.Collections.Specialized.BitVector32. // [Serializable] internal struct SafeBitVector32 { private volatile int _data; internal SafeBitVector32(int data) { this._data = data; } #if UNUSED_CODE internal int IntegerValue { get { return _data; } set { #pragma warning disable 0420 Interlocked.Exchange(ref _data, value); #pragma warning restore 0420 } } #endif internal bool this[int bit] { get { int data = _data; return (data & bit) == bit; } set { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { break; } } } } internal bool ChangeValue(int bit, bool value) { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } if (oldData == newData) { return false; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { return true; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TemplateComponentConnector.cs
- TagNameToTypeMapper.cs
- ServiceInstallComponent.cs
- DrawingGroup.cs
- safemediahandle.cs
- QuotaThrottle.cs
- WrappedReader.cs
- OverrideMode.cs
- DecimalAnimation.cs
- ArrayWithOffset.cs
- Axis.cs
- Activity.cs
- GeometryModel3D.cs
- TableItemStyle.cs
- WebPartCatalogAddVerb.cs
- DataTableCollection.cs
- EventMap.cs
- ComPlusServiceHost.cs
- safex509handles.cs
- SoapParser.cs
- Stacktrace.cs
- Translator.cs
- XsdDateTime.cs
- OracleEncoding.cs
- StringSorter.cs
- XmlQualifiedName.cs
- securestring.cs
- WebConvert.cs
- MsmqPoisonMessageException.cs
- BorderGapMaskConverter.cs
- Instrumentation.cs
- OdbcParameterCollection.cs
- SqlCacheDependencyDatabaseCollection.cs
- FixedDSBuilder.cs
- Brush.cs
- RunWorkerCompletedEventArgs.cs
- ExternalFile.cs
- RadioButton.cs
- ObjectStateEntryDbUpdatableDataRecord.cs
- KeyValueConfigurationCollection.cs
- PrintPreviewDialog.cs
- SqlRowUpdatedEvent.cs
- TypeResolver.cs
- TCPClient.cs
- SessionPageStateSection.cs
- XsdDuration.cs
- SemanticBasicElement.cs
- StyleSelector.cs
- WindowsIdentity.cs
- ListViewItemEventArgs.cs
- StateMachine.cs
- WebExceptionStatus.cs
- XsdCachingReader.cs
- DynamicQueryableWrapper.cs
- InstanceCollisionException.cs
- XsltCompileContext.cs
- JsonWriter.cs
- TrustSection.cs
- XmlNotation.cs
- WorkflowRuntimeService.cs
- UserMapPath.cs
- GridViewSelectEventArgs.cs
- StaticResourceExtension.cs
- CharacterBuffer.cs
- WriteableBitmap.cs
- LinkedList.cs
- SessionViewState.cs
- Pointer.cs
- PropertyPathWorker.cs
- DrawListViewItemEventArgs.cs
- LookupNode.cs
- CacheOutputQuery.cs
- CapabilitiesSection.cs
- PassportIdentity.cs
- TraceHelpers.cs
- HostedHttpTransportManager.cs
- EventHandlerService.cs
- Enum.cs
- SchemaImporterExtensionsSection.cs
- LinkButton.cs
- CategoryGridEntry.cs
- ScriptResourceAttribute.cs
- DescendentsWalker.cs
- Visitors.cs
- TextElementEnumerator.cs
- TemplateKey.cs
- BufferBuilder.cs
- GroupBoxRenderer.cs
- DataListItemEventArgs.cs
- FixedLineResult.cs
- WebBrowserProgressChangedEventHandler.cs
- Zone.cs
- WinInet.cs
- ServiceDeploymentInfo.cs
- ImageButton.cs
- ImageList.cs
- TemplatedWizardStep.cs
- invalidudtexception.cs
- ConsoleCancelEventArgs.cs
- CheckBoxField.cs